Geothermal well mud refers to the mud used for geothermal well drilling. The most prominent feature of geothermal well mud is its resistance to high temperature, which can lead to mud clay dispersion, thickening, and even solidification due to high temperature, destroying the mud performance, thus causing well wall collapse, borehole super warp, shrinkage, bit mud pack, blockage of closed production layer, etc.
Therefore, geothermal well mud treatment is a key challenge for geothermal drilling. The process of geothermal well mud treatment must be equipped with appropriate professional solids control equipment, and the choice of geothermal well mud is mainly based on the specific temperature of the geothermal well.
Geothermal well mud has the following characteristics.
(1) control well spray: not suitable for high-density mud
2) Mud treatment agent: Due to the high temperature of the geothermal well, the mud treatment agent is guaranteed to be above 150°C to maintain a stable mud performance.
(3) heavy metal agents: strictly prohibited to prevent environmental pollution.
(4) Microfine solid phase particles: Ensure that the solid phase particle content is the minimum value.
5）Mud treatment equipment: solid phase control equipment must be equipped.
We can treat the mud solid particles produced by different geothermal well temperatures. The equipment of geothermal well mud solid control treatment system includes: mud vibrating screen, cyclone desander, deslimer, mud cleaner, centrifuge, sand pump, shear pump, submerged slurry pump, mud agitator, jet mixing device, mud gun, sand sinker, purification tank and other equipment, as well as integrated 120 square, 240 square and other geothermal well Mud consolidation and control system. The solids content of the mud can be effectively controlled by the treatment of geothermal well mud solids control equipment, and the solids particles in the mud can be controlled below 5μm-15μm, which can also extend the life of the mud pump and drilling rig and improve the drilling speed.
